Zhang Heng

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Zhang Heng
Zhang Heng.jpg
A stamp o Zhang Heng issued bi China Post in 1955
Native name 張衡
Born AD 78
Nanyang, Cheenae
Died AD 139 (aged 60–61)
Luoyang, Cheenae
Kent for Seismometer, hydraulic-powered armillary sphere, pi calculation, poetry, universe model, lunar eclipse an solar eclipse theory
Scientific career
Fields Astronomy, mathematics, seismology, hydraulics, geografie, ethnografie, mechanical ingineerin, calendrical science, metapheesics, poetry
Zhang Heng
Zhang Heng (Chinese characters).svg
"Zhang Heng" in Tradeetional (tap) an Semplifee'd (bottom) Cheenese chairacters
Tradeetional Cheenese 張衡
Simplifee'd Cheenese 张衡

Zhang Heng (Cheenese: ; AD 78–139), umwhile romanised as Chang Heng, wis a Han Cheenese polymath frae Nanyang that leeved in the Han dynasty.